a5fcc91656
* Mapping attached part of segment is done at attach time instead of
make time to work with runtimes (e.g. OpenMPI) xpmem_make-ing the
entire user-space
* Mapping attached part of segment at attach time can be turned off by
specifying xpmem_remote_on_demand in kernel argument
* Mapping attachment chooses appropriate page-sizes, i.e., largest
allowed by memory range and segment page boundary
Fixes: a8696d8 "xpmem: Support large page attachment"
Change-Id: I44663865204036520e5f62fe22b9134ee4629f9b
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <sys/mman.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <sys/wait.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/shm.h>
|
|
#include <xpmem.h>
|
|
#include <libgen.h>
|
|
#include "util.h"
|
|
#include "okng.h"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
void *mem, *attach;
|
|
int ret = 0;
|
|
xpmem_segid_t segid;
|
|
xpmem_apid_t apid;
|
|
struct xpmem_addr addr;
|
|
|
|
printf("*** %s start ***\n", basename(argv[0]));
|
|
|
|
mem = mmap(0, SZ_MEM, PROT_READ | PROT_WRITE,
|
|
MAP_ANONYMOUS | MAP_PRIVATE |
|
|
MAP_HUGETLB | (LARGE_PAGE_SHIFT << MAP_HUGE_SHIFT), -1, 0);
|
|
INTERR(mem == NULL, "mmap failed\n");
|
|
memset(mem, 0, SZ_MEM);
|
|
|
|
segid = xpmem_make(mem, SZ_MEM, XPMEM_PERMIT_MODE, (void *)0666);
|
|
OKNG(segid != -1, "segid: %lx\n", (unsigned long)segid);
|
|
|
|
apid = xpmem_get(segid, XPMEM_RDWR, XPMEM_PERMIT_MODE, NULL);
|
|
OKNG(apid != -1, "apid: %lx\n", (unsigned long)apid);
|
|
|
|
addr.apid = apid;
|
|
addr.offset = 0;
|
|
attach = xpmem_attach(addr, SZ_MEM, NULL);
|
|
OKNG(attach != (void *)-1, "attach: %lx\n", (unsigned long)attach);
|
|
|
|
ret = xpmem_detach(attach);
|
|
OKNG(ret != -1, "xpmem_detach\n");
|
|
|
|
ret = xpmem_remove(segid);
|
|
OKNG(ret != -1, "xpmem_remove\n");
|
|
|
|
printf("*** %s PASSED\n\n", basename(argv[0]));
|
|
return 0;
|
|
|
|
out:
|
|
printf("*** %s FAILED\n\n", basename(argv[0]));
|
|
|
|
return -1;
|
|
}
|